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From:   Chris White <cdwhite13@gmail.com>
To:     linux-bluetooth@vger.kernel.org
Cc:     cwhit@dolby.com, Keyur Parekh <kpare@dolby.com>
Subject: [PATCH] emulator: Periodic Advertising and Create BIG Command
Date:   Thu,  4 Feb 2021 13:02:22 -0800
Message-Id: <20210204210222.69767-1-cdwhite13@gmail.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

From: Keyur Parekh <kpare@dolby.com>

This adds support for Periodic Advertising and the Create BIG HCI
command in the emulator. These changes are the first step in making
the emulator useful for testing the LE Audio broadcast feature.
---
 emulator/btdev.c | 82 ++++++++++++++++++++++++++++++++++++++++++------
 1 file changed, 73 insertions(+), 9 deletions(-)

diff --git a/emulator/btdev.c b/emulator/btdev.c
index 17965f9b6..3f9201ba2 100644
--- a/emulator/btdev.c
+++ b/emulator/btdev.c
@@ -141,6 +141,12 @@ struct btdev {
 	uint8_t  le_scan_own_addr_type;
 	uint8_t  le_filter_dup;
 	uint8_t  le_adv_enable;
+        uint8_t  le_periodic_adv_enable;
+        uint16_t le_periodic_adv_properties;
+        uint16_t le_periodic_min_interval;
+        uint16_t le_periodic_max_interval;
+        uint8_t  le_periodic_data_len;
+        uint8_t  le_periodic_data[31];
 	uint8_t  le_ltk[16];
 	struct {
 		struct bt_hci_cmd_le_set_cig_params params;
@@ -3008,7 +3014,6 @@ static void le_send_adv_report(struct btdev *btdev, const struct btdev *remote,
 	} meta_event;
 
 	meta_event.subevent = BT_HCI_EVT_LE_ADV_REPORT;
-
 	memset(&meta_event.lar, 0, sizeof(meta_event.lar));
 	meta_event.lar.num_reports = 1;
 	meta_event.lar.event_type = type;
@@ -3934,22 +3939,57 @@ static int cmd_clear_adv_sets(struct btdev *dev, const void *data,
 static int cmd_set_per_adv_params(struct btdev *dev, const void *data,
 							uint8_t len)
 {
-	/* TODO */
-	return -ENOTSUP;
+	const struct bt_hci_cmd_le_set_periodic_adv_params *cmd = data;
+	uint8_t status;
+
+	if (dev->le_periodic_adv_enable) {
+		status = BT_HCI_ERR_COMMAND_DISALLOWED;
+	}
+	else {
+		status = BT_HCI_ERR_SUCCESS;
+		dev->le_periodic_adv_properties = le16_to_cpu(cmd->properties);
+		dev->le_periodic_min_interval = cmd->min_interval;
+		dev->le_periodic_max_interval = cmd->max_interval;
+	}
+
+	cmd_complete(dev, BT_HCI_CMD_LE_SET_PERIODIC_ADV_PARAMS, &status,
+							sizeof(status));
+
+	return 0;
 }
 
 static int cmd_set_per_adv_data(struct btdev *dev, const void *data,
 							uint8_t len)
 {
-	/* TODO */
-	return -ENOTSUP;
+	const struct bt_hci_cmd_le_set_periodic_adv_data *cmd = data;
+	uint8_t status = BT_HCI_ERR_SUCCESS;
+
+	dev->le_periodic_data_len = cmd->data_len;
+	memcpy(dev->le_periodic_data, cmd->data, 31);
+	cmd_complete(dev, BT_HCI_CMD_LE_SET_PERIODIC_ADV_DATA, &status,
+							sizeof(status));
+
+	return 0;
 }
 
 static int cmd_set_per_adv_enable(struct btdev *dev, const void *data,
 							uint8_t len)
 {
-	/* TODO */
-	return -ENOTSUP;
+	const struct bt_hci_cmd_le_set_periodic_adv_enable *cmd = data;
+	uint8_t status;
+
+	if (dev->le_periodic_adv_enable == cmd->enable) {
+		status = BT_HCI_ERR_COMMAND_DISALLOWED;
+	}
+	else {
+		dev->le_periodic_adv_enable = cmd->enable;
+		status = BT_HCI_ERR_SUCCESS;
+	}
+
+	cmd_complete(dev, BT_HCI_CMD_LE_SET_PERIODIC_ADV_ENABLE, &status,
+							sizeof(status));
+
+	return 0;
 }
 
 static int cmd_set_ext_scan_params(struct btdev *dev, const void *data,
@@ -4470,9 +4510,32 @@ static int cmd_reject_cis(struct btdev *dev, const void *data, uint8_t len)
 static int cmd_create_big(struct btdev *dev, const void *data, uint8_t len)
 {
 	/* TODO */
-	return -ENOTSUP;
+	cmd_status(dev, BT_HCI_ERR_SUCCESS, BT_HCI_CMD_LE_CREATE_BIG);
+
+	return 0;
 }
 
+static int cmd_create_big_complete(struct btdev *dev, const void *data,
+							uint8_t len)
+{
+	const struct bt_hci_cmd_le_create_big *cmd = data;
+	int i;
+
+	for (i = 0; i < cmd->num_bis; i++) {
+		const struct bt_hci_bis *bis = &cmd->bis[i];
+		struct  bt_hci_evt_le_big_complete evt;
+
+		evt.big_id = cmd->big_id;
+		evt.num_bis = cmd->num_bis;
+		evt.phy = bis->phy;
+		memcpy(&evt.latency, &(bis->latency), 3);
+
+		le_meta_event(dev, BT_HCI_EVT_LE_BIG_COMPLETE, &evt,
+					sizeof(evt));
+	}
+
+	return 0;
+}
 static int cmd_create_big_test(struct btdev *dev, const void *data, uint8_t len)
 {
 	/* TODO */
@@ -4621,7 +4684,8 @@ static int cmd_set_host_feature(struct btdev *dev, const void *data,
 	CMD(BT_HCI_CMD_LE_REMOVE_CIG, cmd_remove_cig, NULL), \
 	CMD(BT_HCI_CMD_LE_ACCEPT_CIS, cmd_accept_cis, NULL), \
 	CMD(BT_HCI_CMD_LE_REJECT_CIS, cmd_reject_cis, NULL), \
-	CMD(BT_HCI_CMD_LE_CREATE_BIG, cmd_create_big, NULL), \
+	CMD(BT_HCI_CMD_LE_CREATE_BIG, cmd_create_big, \
+			cmd_create_big_complete), \
 	CMD(BT_HCI_CMD_LE_CREATE_BIG_TEST, cmd_create_big_test, NULL), \
 	CMD(BT_HCI_CMD_LE_TERM_BIG, cmd_term_big, NULL), \
 	CMD(BT_HCI_CMD_LE_BIG_CREATE_SYNC, cmd_big_create_sync, NULL), \
-- 
2.21.0 (Apple Git-122.2)